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Spark plasma sintering and porosity studies of uranium nitride
KTH, School of Engineering Sciences (SCI), Physics, Reactor Physics.
KTH, School of Engineering Sciences (SCI), Physics, Reactor Physics.ORCID iD: 0000-0002-6082-8913
KTH, School of Engineering Sciences (SCI), Physics, Reactor Physics.ORCID iD: 0000-0001-6818-5724
KTH, School of Engineering Sciences (SCI), Physics, Reactor Physics.
2016 (English)In: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 473, 13-17 p.Article in journal (Refereed) PublishedText
Abstract [en]

In this study, a number of samples of UN sintered by the SPS method have been fabricated, and highly pure samples ranging in density from 68% to 99.8%TD-corresponding to an absolute density of 14.25 g/cm3 out of a theoretical density of 14.28 g/cm3-have been fabricated. By careful adjustment of the sintering parameters of temperature and applied pressure, the production of pellets of specific porosity may now be achieved between these ranges. The pore closure behaviour of the material has also been documented and compared to previous studies of similar materials, which demonstrates that full pore closure using these methods occurs near 97.5% of relative density.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 473, 13-17 p.
Keyword [en]
Generation IV, Nuclear fuel, Pore closure, Sintering, SPS, Uranium nitride, Nitrides, Nuclear fuels, Porosity, Spark plasma sintering, Uranium, Uranium compounds, Number of samples, Relative density, Sintering parameters, Specific porosity, Theoretical density
National Category
Mineral and Mine Engineering Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-186981DOI: 10.1016/j.jnucmat.2016.01.037ISI: 000373490700003ScopusID: 2-s2.0-84959376726OAI: oai:DiVA.org:kth-186981DiVA: diva2:929442
Note

QC 20160518

Available from: 2016-05-18 Created: 2016-05-16 Last updated: 2016-05-18Bibliographically approved

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Johnson, Kyle D.Wallenius, JanneJolkkonen, MikaelClaisse, Antoine
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